4 ms·
TaIrTe₄ photodetectors show promise for sensitive room-temperature THz sensing
- wglb 1y agoThe paper in Nature: https://www.nature.com/articles/s41928-025-01397-z https://www.nature.com/articles/s41928-025-01397-z
- Y_Y 1y ago> We fabricated Har bar geometry sensing devices using atomically thin TaIrTe₄, I've never heard of a "Har bar" not its geometry, but apparently neither has Google.
- perching_aix 1y agoGPT-4o did hear of a "Hall bar geometry" though and suggested it's a typo. That one does return results on Google as well, and makes sense in context too.
- meepmorp 1y agoYeah, there's this line in the original paper: > Accordingly, we measured the nonlinear Hall transport in a few-layer sample with a Hall bar device geometry at room temperature
- deleted 1y ago[deleted]
- DFHippie 1y agoTantalum, iridium, and tellurium? How expensive is this stuff?
- philipkglass 1y agoThese materials are pretty expensive. Tellurium is currently about $86/kg, tantalum $430/kg, and iridium $140,000/kg: https://www.dailymetalprice.com/metalpricecharts.php?c=ir&u=kg&d=120 https://www.dailymetalprice.com/metalpricecharts.php?c=ir&u=... https://www.metal.com/en/markets/20 https://www.metal.com/en/markets/20 But it's a "2d material" so it only takes a tiny atomically thin quantity of these elements to build a detector: https://news.columbia.edu/news/what-are-2d-materials-and-why-do-they-interest-scientists https://news.columbia.edu/news/what-are-2d-materials-and-why...
- K0balt 1y agoIs this good for making tricorders? ‘Cause if it ain’t good for making tricorders I don’t give a rats a&&. But seriously, THz imaging ins going to be wild.